Add build tool guide

Author: mafiesto4

manual/editor/flax-build/guide.md

@@ -0,0 +1,19 @@
+# Build Tool Guide
+
+## Deps
+
+![Deps](media/deps.png)
+
+`Flax.Build` handles 3rd Party dependencies downloading, updating and building for all supported platforms. Each package defines the custom logic to download itself (eg. via `git clone` or `zip` decompress). Then code is compiled for selected set of platforms (eg. via `msbuild` or `cmake`). Finally, output binaries are copied into `Source/Platforms/<platform>/Binaries/ThirdParty/<arch>` folder to be used when compiling the engine.
+
+Example command line to update all dependencies for a platform `Android`:
+
+```
+Flax.Build -log -ReBuildDeps -verbose -platform=Android
+```
+
+Example command line to update `NewtonsoftJson` dependency for all platforms:
+
+```
+Flax.Build -log -ReBuildDeps -verbose -depsToBuild=NewtonsoftJson
+```

manual/editor/flax-build/index.md

@@ -20,6 +20,12 @@ Major features:
 
 This documentation section covers most of the topics related to Flax.Build tool. To learn more please refer to Flax.Build sources located under `Source\Tools\Flax.Build` and/or use `Binaries\Tools\Flax.Build.exe -help` to learn more about usage. The engine repository contains useful scripts that are wrappers against the build tool and automatically compile its sources.
 
+## In this section
+
+* [API tags](api-tags.md)
+* [Build Blugins](plugins.md)
+* [Build Tool Guide](guide.md)
+
 ## Build Scripts
 
 The main source of build configuration are **.Build.cs** files located in the project `Source` directory. Written in **C#**, scripts can contain targets, modules, SDKs, or other utilities used for building. When generating project scripts files, all build scripts are included in **Rules** project which defines the build rules and can be explored with code IDE.

manual/editor/flax-build/media/deps.png

@@ -59,6 +59,7 @@
 ## [Flax.Build](editor/flax-build/index.md)
 ### [API Tags](editor/flax-build/api-tags.md)
 ### [Plugins](editor/flax-build/plugins.md)
+### [Guide](editor/flax-build/guide.md)
 ## [Editor Options](editor/options/index.md)
 ## [Profiling](editor/profiling/index.md)
 ### [Profiler](editor/profiling/profiler.md)